add ethernet driver support for qemu-system-or32

target/linux/config/Config.in.ethernet

@@ -348,4 +348,12 @@ config ADK_KERNEL_STMMAC_ETH
 	default y if ADK_TARGET_SYSTEM_BANANA_PRO
 	default n
 
+config ADK_KERNEL_ETHOC
+	bool "OpenCore ethernet driver"
+	select ADK_KERNEL_PHYLIB
+	select ADK_KERNEL_MII
+	depends on ADK_TARGET_SYSTEM_QEMU_OR1K
+	default y if ADK_TARGET_SYSTEM_QEMU_OR1K
+	default n
+
 endmenu

target/or1k/kernel/qemu-or1k

@@ -9,3 +9,4 @@ CONFIG_OPENRISC_HAVE_INST_LWA_SWA=y
 CONFIG_IRQCHIP=y
 CONFIG_OR1K_PIC=y
 CONFIG_SLOB=y
+CONFIG_MICREL_PHY=y